Upgrade or maintain the performance of your SIDI Rex and Rex Air boots with the SIDI Rex Upper Brace. Designed to reinforce the upper portion of the boot, this part offers essential support for riders during demanding conditions. Available in multiple color options, the brace ensures that your boots maintain both style and function. Simple to install with the included hardware, this replacement upper brace is an ideal addition for ensuring that your boots remain secure and comfortable for the long haul.